lummox
noun/ˈlʌməks/
Etymology Unknown. First attested in 1825 in East Anglian slang. Perhaps from "dumb ox", influenced by lumbering; or from or cognate to dialectal verb lummock (“move about heavily or clumsily”), itself a word of uncertain origin.
1
Informal A clumsy, stupid person; an awkward bungler.
- You've broken the plates, you great lummox!
- As a rule, a knight is a lummux, and sometimes even a labrick, and hence open to pretty poor arguments when they come glibly from a superstition-monger, but even he could see the practical side of a thing once in a while; […]1889, Mark Twain [pseudonym; Samuel Langhorne Clemens], “The Tragedy of the Manor-house”, in A Connecticut Yankee in King Arthur’s Court, New York, N.Y.: Charles L. Webster & Company, →OCLC, page 382:
1 more example
- I love you, Gal. You're lovable. Big lovable bloke. Loveable lump. Loveable lummox. Gal Dove, party boy. Big oaf.2000, Louis Mellis, David Scinto, Sexy Beast (motion picture), spoken by Don Logan (Ben Kingsley):